Tube-making machine.



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Patented Oct. 9, mm

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(Application filed Feb. 20, 1699.)

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Nita STATES WALTER O. BEOKYVI'IH, OF FOSTORIA, OHIO.

TUBE-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 659,567, dated October 9, 1900.

Application filed February 20, 1899. Serial No. 706,190. (No model.)

To all whom, it may concern:

Be it known that I, WALTER O. BEOKWITH, a citizen of the United States, residing at Fostoria, in the county of Seneca and State of Ohio, have invented new and useful Improvements in Tube Making Machines, of which the following is a Specification.

My invention relates to improvements in tube-making machines, and pertains to a machine in which a rotating cylinder, an apron, and a separate mandrel or mandrels are used, all of which will be fully described hereinafter and particularly referred to in the claims.

The object of my invention is to produce a cheap machine in which tubes for fire-crackers, fireworks, mailing-tubes, &c., can be rapidly produced and which is adapted to form long, short, large, and small tubes, the capacity of the machine being limited only to the speed of the operator in feeding the tubeinandrels thereto.

Referring now to the drawings, Figure 1 iswhich project the standards B, the said standards being connected by means of the horizontal beams O and D, forming in top plan view a rectangular frame, as shown. Journaled upon the side beams O is a roller E, which is covered with an y rough surface, such as wire-netting or coarse canvas, but preferably of corrugated rubber, as here shown. This roller or cylinder will be made of any desired length or diameter, according to the largest-sized tube it is intended to produce. Ooacting with this roller or cylinder E is a flexible apron F, which will be formed of a rough material, such as that which covers the roller E, and the forward end of this apron is suitably connected with a suitable crossbar G. This cross-bar G is provided at its ends with laterally-projecting ears or plates 0., having longitudinal slots 1), and passing through these slots 1) are the clamping-screws c, which are screwed into the U-shaped brackets cl, whereby this supporting-bar for the upper or forward end of the apron is ading their tension can be provided and accom-' plish the same result. .By means of this arrangement the apron is held to cooperate with the roller with any desired amount of tension.

While the apron may be held in contact with the roller, I prefer to support the apron out of contact with the roller for the purpose of preventing friction between the roller and the apron. This is accomplished by providing the apron with a plurality of transverse slats 6, having their ends held in any desired manner for preventing the apron from coming in contact with the roller. The means here shown for accomplishing this consists of the lacingf, which is connected, respectively, with the ends of the slats and with the framework of the machine and by means of which the apron is held adjacent to but out of contact with the roller.

By reference to Fig. 2 it will be seen that for about one-fourth of the diameter of the roller the apron is on a parallel curve therewith and its upper end is held away from the roller, which forms an inclined or wedgeshaped space L for the reception of the tubelnandrel m, as clearly illustrated in said Fig. 2. The lower and exit end of the apron is preferably formed on an approximately-horizontal plane, as shown at N, and situated below the exit end of this apron are inwardlyprojecting mandrel and tube catching arms g, which extend inward under the exit end of the apron from the inner edge of the tubereceiving shelf h, the outer edge of the shelf it having the stops or projections'i for preventing the mandrel and the formed tube from rolling therefrom and for supporting it until it is removed by the stripping boy or operator.

Projecting outward from the bar which is attached to the upper end of the apron is a and provided with. a. longitudinal slots, into.

which the edge of the paper from which the tube is to be formed isinse-rted, and then the paper is bent or creased slightly by the operator, as shown; in Fig. 2..

In operation thererwill; be as manymanr drels=as will be desired, and the feeding-op;-

erator will. placeone edge ofi the. sheetin; the slot of the mandrel andi bQHdg or crease; it slightly outward,.as illustrated an lthenld nop the mandrel between: the; upper end: at the aprom and the. roller, the. opposite edgeofi the: paper being gummed, andzrest. the. projecting: portion 0t the sheet against the guard am. 'Iihe.

mandrel being dropped, into: the \li-shaped space between theinlet endof the apron: and.

the roller, itgiscaught and; revolved and canrijed; around through between the roller-and.

the; apron, thus wrapping; the, paper there,- aroundanddelivering the. mandrel, to: the shalt h with the tube formedi. thereon.

from and pass the-mandrel again to the'feedr ing operator;

From this; description it. willbe seen: that.

there may be one,. two, or-moreofithemanr drels; passing through between the rollen and.

the apron, according tolthe speed, with Which an operator can supply the mandrels.

. In order to. havethe machine operate, itis necessary that a powerful pressure be ob? tained upon themandrel, andrtherefone itiis: necessary to. providea cylinder havingrprac;--

The rubber tically a rigid friction-surface which is placed; upon. the cylinder and upon the paper isofthat: character. which; is: only sufficiently yielding to providea friction-sub face, while atthe'sametimeit.providesprace tically'a rigid surface capable of receiving a;

heavy pressure, which is necessary to cause the mandrel tov revolve and toiroll thepaper tube thereon.

also. assistedf'rom the fact that theedge of the sheet which is placed inthe slot of; the

tube-is accessible to the. fingers of the openator for drawing thetube therefrom.

I; find that by theuseof amachine asherein described, which is cheap to construct, I;

can greatly increase the output of tubes for i 'llhew stripping boy will then remove thetube there,-

mailing-tubes fireworks, or other purposes OKQn-t-hfl usual method on machinefo'r constructing similar tubes and that the machine is adapted to form large, small, long, or short 'tubesfas may be required, being limited in length only by the length of the roller E and 5the width of theaapcon coacting therewith. It will also be noted that I am enabled to regnlate the-tension of the apron according to the thickness of the sheet from which the tube is being formed. Having thus describedmy. imrention, what 1 claim, and desire to secure by Letters Patent, is-

l. A tube-rolling machine comprising a roller having practically a, firiction-snnface, a segmental; concaved surf-ace: extending partially around and adaptedto, receive between it and the nollena mandrel and 11.01 jtate the; latten under pneesureifer forming a. gtnbe, and a mandrel uponawhieh thestitbeia :rol'led, substantially assdesoribed. f. 2., A. tube-rolling machine; comprising a i perfectly-cylindricalirollenhayingpraetieallv anigidifriction-surtacen aisegmental GOILCEMVQdism-face. coacting therewith and. adapted: to jreceive a: mandrel etween it and. the rollen and to. rotate the; mandneli under pnessure. to .form a tube, and a mandrel upon which. the. tube-.is. rolled as it. passeshetweem the concatred. surfaceeandi the-roller, subs antially-as described.

3.. A. maehinefionfonming'. tubes, comprising arollen haningrapracticalla-rigidfinictiou face, an apron supported adjacent thereto. and. pronidedi on its; outer side. with. trans? verse slats, aholding means between the slats. and the machinerfnameiforholding:thaapron out-pf cyntmtwiththe. roller, ayielding memberrfor holding. the apron. under tension and a, mandrel upon which. the. tmbeds formedi. substantially as. described. 4:. A machine fon forming tubes; cornpnis-' ingamllerhanin ai practically-rigid:firietionr face, an apron adaptedi tocnact. therewith a; mandret upon which. the tubeiisfomned, and .a guard extending: across the: nolleran a point above the inletaend ofitheapnonifor-the punpose. described.

5.. A machine-fonforming tubes. comprising aroller havingapractinally rigidifnictiom face,.anl apron supported; at; itsupper and lower ends,.theiapron hauingbetween its-ends. transuersely--extending slats, and lacings connectingtherslats and therframe-ofi the ma ichine for supportingtheapron ontofi'contacn with the rolle r,.snbstantiallyas described.

, In testiimonywhereof I have-hereuntoiset. jmy: hand in the presence of twolsuhscnihinga jwitnesses. 1 WALTER G. BEOKWITH.

\ Witnesses: i WILLIAM N- CALDWELL,

ELLA. IOKES Ronems. 

